I went ahead and checked out the owner's manual for the Jensen RV Stereo w DVD Player - Double DIN - App Control # JWM60A and the radio turns on but isn't putting out any sound then you'd need to do the following:
-Make sure that the volume, fader/balance, and mute controls are set correctly,
-Verify that the proper speakers are selected,
-Verify that the speakers are connected properly,
-Check your wiring for any open circuits on your speaker wires,
Finally, if everything looks good... view full answer...